Мета статті – розробка методичних підходів до побудови виробничої функції вуглевидо¬бувних підприємств. Особливість пропонованих виробничих функцій – вони однофакторні; як аргумент функції застосовуються прямі й непрямі витрати енергетичних ресурсів на видобуток вугілля й обслуговування шахти.
Ключові слова: виробнича функція, вуглевидобувне підприємство, прямі та непрямі витрати енергетичних ресурсів.
Цель статьи – разработка методических подходов к построению производственных функций угледобывающих предприятий. Особенность предлагаемых производственных функций – они однофакторные; в качестве аргумента функции используют прямые и косвенные затраты энергетических ресурсов, понесенные на добычу угля и обслуживание шахты.
Ключевые слова: производственная функция, угледобывающее предприятие, прямые и косвенные затраты энергетических ресурсов.
The matter of ensuring a highly efficient performance of the coal mining enterprises is topical and is reflected as a basic in all branch programme documents. The efficiency here, as a rule, is recognized as a profitability of a coal mine performance. In author’s opinion, economic aspects of efficiency are the most important for independent mines and horizontally integrated coal holdings (enterprises). For vertically integrated systems and the country economy as a whole energy efficiency is determinative.
Fears concerning energy inefficiency of coal mining in Donetsk Basin were introduced in the 80th of the XX century – deteriorating geological conditions and ageing mine basic assets caused increase in consumption of materials, labour and energy. Crisis in coal mining industry of Ukraine aggravated the situation; reduction of coal production brought about a nonlinear increase in its cost price and specific power consumption.
The purpose of this work is to develop a technical approach as to modeling coal mine production functions depending on the energy expenditure. By energy expenditure we mean the total amount of energy resources consumed (directly & indirectly) in the process of coal mining and coal mine servicing, i.e. consumption of electricity and thermal energy in the coal mine itself, electricity required for the preparation and transportation of coal, materialized in equipment, materials, buildings and structures as well as in resources used by personnel for domestic purposes.
The proposed production function of a coal mine is made in the form of logarithmic dependence between the quantity of mined coal and the volume of energy resources consumed.
The production functions modeling is based on the results of retrospective observations of the Ukrainian coal mine functioning made by the predecessors.
The production functions of operating coal mines of Donetsk Basin are given as an example, the conclusions are made regarding the correlation between the production function elasticity and optimal coal mine operating modes.
Keywords: efficiency, production function, coal mining enterprise, direct and indirect energy expenditure.
